DRINKING WATER

GettyImages-182818722_450_300 Why A Temporary Water Treatment System Might Be Your Best Investment

It is critical to understand the limitations of permanent installations and how a temporary water treatment system can make sound logistical and financial sense.

DRINKING WATER CASE STUDIES AND WHITE PAPERS

  • On The Job In 72 Hours Following Utility's Massive Water Main Break

    On the morning of December 12, 2017, about 30 homes in the Shelby Park neighborhood of Lousiville, KY, were without water, and others were experiencing low water pressure after a massive water main break at the intersection of Clay and Oak streets. More than 20 million gallons of water flooded the neighborhood, covering a three-block area.

  • Midlothian, TX, Expands Water Treatment Plant With A Safe, Reliable Disinfection System

    When the City of Midlothian, Texas, was ready to expand their water treatment plant to accommodate a growing population, they carefully considered and investigated their water disinfection options.

  • White Paper: Recycling And Reuse Of Desalinated Seawater This paper presents the technology that is capable of treating wastewater, discusses how this technology is suitable for the challenges presented by wastewater treatment, presents examples of what can be expected as water quality, and presents the results of a plant handling wastewater.
  • Recouping Revenue With Accurate Water Meters - Ira Township, MI

    Ira Township in Fairhaven, MI used to have a variety of water meters with different reading technology—radio, touchread, automatic reading boxes and direct-read meters. On average, the meters were 19 years old and some were as old as 40 years. “With meters that old, we were not recouping all the revenue we should be,” says Chris Hiltunen, Ira Township Water & Department of Public Service Superintendent.

  • 160-Year-Old Gas Line Shows Resiliency Of Iron Pipe

    A 30-inch diameter 160-year-old cast iron pipe was recently excavated and retired from gas service in Chicago, Illinois. Installed in 1859, this pipeline provided Chicago’s residents, fewer than 112,000 at the time, with reliable lighting at night. As the years passed, this cast iron pipe continued to provide dependable gas service in the tough urban environment of downtown Chicago.

  • A Better Approach To Iron And Manganese Removal

    The aesthetic impact of iron and manganese on finished water — altering its color, odor, and/or taste — is the top driver of municipal utility customer complaints. 

  • Winning Strategies For Smart Cities, Smart Water, And Water Reuse

    Every city facing infrastructure or operational challenges or concerns about maintaining quality of life in the face of population growth or a changing environment has benefits to gain from a unified smart-city approach. Here are some concepts for promoting understanding and acceptance among utility and government decision-makers, plus several examples of benefits already being garnered by smart cities large and small.

  • Maximize Efficiency Of Meter Reading With A Cellular Network

    Explore how a utility was able to improve their level of service to the community, increase accuracy in water metering and ensure safety for meter technicians.

  • 4 Treatment Plant Budget Busters To Avoid

    Municipalities work diligently to produce quality drinking water and meet strict wastewater treatment regulatory standards while managing expenses. Advanced technologies allow utilities to gather actionable information and strategically offset deficiencies.

  • Converters: The Real Heroes Of Flow Measurement

    Durable and reliable flow meters play a vital role in municipal water operations, but having the right converter to capture and transmit the resulting information is critical to maximize their value. Converters are expected to be robust and too often are taken for granted. Selecting the right converter to pair with your flow meters can make the difference in whether your data provides an average return on investment or the maximum benefit.

DRINKING WATER APPLICATION NOTES

  • The Process Of Deionizing Water
    10/29/2021

    Years ago, high purity water was used only in limited applications. Today, deionized (Dl) water has become an essential ingredient in hundreds of applications including: medical, laboratory, pharmaceutical, cosmetics, electronics manufacturing, food processing, plating, countless industrial processes, and even the final rinse at the local car wash.

  • The Basics: Monitoring Deionized Water
    5/1/2014

    Years ago, high purity water was used only in limited applications. Today, deionized (Dl) water has become an essential ingredient in hundreds of applications including: medical, laboratory, pharmaceutical, cosmetics, electronics manufacturing, food processing, plating, countless industrial processes, and even the final rinse at the local car wash.

  • Best Practices In Moist And Wet Gas Flow
    12/20/2021

    The Wet Gas MASSter sensor is for use in applications that have a high level of moisture or condensation present in the gas flow stream that cannot otherwise be removed.

  • Application Note: Troubleshooting A pH Electrode
    1/26/2011

    Many factors affect performance of a pH electrode. When performance degrades, it is always a challenge for the analyst to identify the cause. Common troubleshooting procedures, which include evaluation of slope, electrode drift, time response, and accuracy, take considerable time. By Thermo Fisher Scientific

  • Determination Of Pesticide Residues In Honey, By An Automated QuEChERS Solution
    9/17/2014

    The QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample extraction method was developed for the determination of pesticide residues in agricultural commodities.

  • A Comparative Study Of On-Line And Laboratory TOC Analyzers For Analysis Of Raw And Finished Drinking Water
    4/5/2013

    Total organic carbon (TOC) analysis is an important indicator of water quality throughout the drinking water treatment process. Raw source water is progressively treated in chemical coagulation, flocculation, sedimentation, and filtration steps to remove particulate matter and natural organic matter (NOM).

  • LC-MS Analysis Of PFAS Compounds In EPA Methods 537.1, 533 And 8327
    11/4/2021

    The Ascentis Express PFAS HPLC column is designed for the separation of novel and legacy PFAS as per recent EPA methods. A specific PFAS delay column prevents background PFAS contamination from interfering with sample results in quantitative LC-MS methods.

  • The Basics: ORP and Free Chlorine Monitoring
    5/13/2014

    Oxidation Reduction Potential or Redox is the activity or strength of oxidizers and reducers in relation to their concentration. Oxidizers accept electrons, reducers lose electrons. Examples of oxidizers are: chlorine, hydrogen peroxide, bromine, ozone, and chlorine dioxide. Examples of reducers are sodium sulfite, sodium bisulfate and hydrogen sulfide. Like acidity and alkalinity, the increase of one is at the expense of the other.

  • Protecting Pumps From Dead Head Conditions
    4/6/2017

    The C445 motor management relay offers the most configurable protection options in the industry, with features specifically designed to protect critical pumps from costly damages due to dead-head and other underloaded or starved pump conditions.

  • Drinking Water Testing By Ion Chromatography Using Ultrapure Water
    9/29/2022

    This application note demonstrates the suitability of ultrapure water produced by a Milli-Q IQ  7000 water purification system for the IC analyses of inorganic ions and DBPs in drinking water.

DRINKING WATER PRODUCTS

Each measuring path is formed by two coordinated transducers that transmit ultrasonic signals back and forth through the pipe. Using the transmit and receive time difference between the two signals, caused by the flow in the pipe slowing the transit time against the flow and accelerating the time with the flow, the transmitter calculates the resulting flow measurement.

Highly effective against bacteria and viruses, the Advanced Oxidation System (AOS) is also well-suited for the decontamination of hard-to-treat organic contaminants such as pharmaceuticals and other micropollutants The AOS can be configured to deliver optimized performance for most water or wastewater treatment applications.

Ozone treatment for water and wastewater has been utilized successfully for several decades and continues to be a viable disinfection solution for both municipal and industrial plants, worldwide.

The LLT100 is a high performance laser transmitter that accurately measures level, distance and position over short and long ranges. It is a non-contact, level measuring instrument designed for industrial applications and harsh environments.

The Aquana AquaFlow is a meter agnostic valve with a modular design. AquaFlow offers a fully integrated solution with either LTE-M cellular or LoRaWAN connectivity, automatic leak detection, and access to the Aquana Cloud for a full AMI platform including meter reading, remote connect/disconnect, and billing system integration. 

Coriolis mass flow meter systems, sensors, and transmitters utilize the latest technology for high performance.

LATEST INSIGHTS ON DRINKING WATER

DRINKING WATER VIDEOS

Scientists are developing robots that might someday be able to creep through the pitch-black mines to help prevent spills. A 2015 spill from Colorado’s Gold King Mine unleashed 3 million gallons of water that fouled rivers in three states with toxins.

Scientists are developing new motors that are tiny and soft. They run on things like light, magnetic effects or chemical solutions. And they can serve specific functions — including cleaning up pollution.

The Orange County Water District (OCWD) has long been an innovative leader in indirect potable reuse. An integral component of its Groundwater Replenishment System (GWRS) – a 100 million gallon per day advanced water purification facility – is reverse osmosis membrane technology.

This video gives an overview of the features and benefits of the YSI Professional Plus, or Pro Plus, handheld multiparameter water quality instrument.

GE partnered with the Wharton School's Initiative for Global Environmental Leadership (IGEL) for an industry leaders' discussion about the energy/water nexus in unconventional oil & gas production.

ABOUT DRINKING WATER

In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA)

Drinking water considerations can be divided into three core areas of concern:

  1. Source water for a community’s drinking water supply
  2. Drinking water treatment of source water
  3. Distribution of treated drinking water to consumers

Drinking Water Sources

Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater. 

Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.

Drinking Water Treatment

Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.

There are a variety of technologies and processes that can be used for contaminant removal and the removal of pathogens to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.

The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.

The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.

During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.

Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.

Drinking Water Distribution

Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.

A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.

Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.